Neither. Get a good balance between carbs, fats and proteins. Between 30-40% of your calories from all 3 macros is a good starting point. Personally I'm a big believer in focussing your carbohydrate intake after training. Eat 30-50% of your carbs right after training, then get the rest of your carbs between training and dinner. I have VERY few carbs before training, and I've found that this serves me well.